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Policy and Guidance
Questions and Answers: Railworthiness Directive for Railroad Tank Cars Equipped with Certain McKenzie Valve & Machining LLC Valves
Keywords: Railworthiness directive, McKenzie Valve, UNNR
Abstract: This document provides guidance on moving tank cars equipped with the McKenzie valves specified in the Railworthiness Directive published March 18, 2015. The document was updated...
Forms and Templates
Keywords: statement of work; application forms; grant templates
Railworthiness Directive for Railroad Tank Cars Equipped With Certain McKenzie Valve & Machining LLC Valves
Keywords: Railworthiness Directive; Hazerdous Materials; Valve; Tank Cars
Abstract: This Directive requires railroad tank car owners to replace unapproved valves currently installed in some tank cars. The valves in question are UNNR ball valves manufactured and...